Method for describing space target optical scattering characteristics through a three-element model

A technology of space target and scattering characteristics, applied in optics, optical components, 3D modeling, etc., can solve problems such as the inability to describe the optical scattering characteristics of space targets, and achieve a comprehensive effect of describing

Active Publication Date: 2019-03-19
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defect that the binary method in the prior art cannot describe the optical scattering characteristics of the space object including the mirror reflection phenomenon, and provide a method for describing the optical scattering characteristics of the space object with a three-element model. On the basis of the meta-model, the description elements of mirror reflection parts are added to describe the optical scattering characteristics of space objects containing mirror reflection phenomena

Method used

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  • Method for describing space target optical scattering characteristics through a three-element model
  • Method for describing space target optical scattering characteristics through a three-element model
  • Method for describing space target optical scattering characteristics through a three-element model

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Embodiment 1

[0042] 1. The luminosity of the space object is obtained through the actual observation of the National Astronomical Observatory or the simulated measurement in the laboratory to obtain the photometric curve of the space object, and the photometric curve includes the phenomenon of mirror reflection.

[0043] 2. Construct a 3D model of the satellite. The 3D model contains three elements. The first element is the square satellite body. The surface of the satellite body is regarded as a Lambertian material, and the reflectivity is to be determined; the second element is the satellite sailboard, which covers the space Commonly used materials for target sailboards; the third element is the mirror reflection part, the surface of the mirror reflection part is covered with a mirror reflection material, the direction of the mirror reflection part is to be determined, and the initial setting is a small area. The construction of the three-dimensional model can be realized by common modeli...

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Abstract

The invention provides a three-element model for describing optical scattering characteristics of a space target, which is characterized in that mirror reflection component description elements are added on the basis of a dihedral element model and are used for describing the optical scattering characteristics of the space target containing a mirror reflection phenomenon. The ternary model describes the optical scattering characteristics of a space target containing a mirror inversion phenomenon. The problem that the binary model cannot describe the optical scattering characteristics of the satellite body including the mirror reflection component is solved. The optical scattering characteristics of the space target are described more comprehensively, meanwhile, the invention provides a body reflectivity determining method, a body surface mirror reflection component direction analyzing method and a body surface mirror reflection component direction describing method, and a mirror reflection component area determining method.

Description

technical field [0001] The invention relates to a method for describing the optical scattering characteristics of a space target by a three-element model. Background technique [0002] The analysis of space target optical scattering characteristics is the basis of space target surveillance, and the description of space target optical scattering characteristics is the premise of carrying out target characteristic analysis and feature inversion. The optical scattering characteristics of a space target are the result of the joint influence of external factors and internal factors. The external factors refer to the space observation geometry, that is, the relative positions of the sun, the target and the ground station in space. The internal factors mainly refer to the characteristics of the target itself, including Target geometry, target shape and pose, surface material, etc. For optical surveillance equipment, the optical detection and tracking of the target is carried out. ...

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Application Information

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IPC IPC(8): G06F17/50G02B27/00G06T17/00
CPCG02B27/0012G06T17/00G06F30/20Y02T90/00
Inventor 李智张峰徐灿张雅声李鹏霍俞蓉方宇强殷智勇许洁平张学文
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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